Recent content by jw2007

I am placing a small crane on a concrete deck. The deck live load is 760psf. The crane is 17,260lbs. Each outrigger base plate contacting the deck has a surface area of .75 sq. ft. This gives a load of about 5753lb on each base plate. I am going to use steel plate (A36 plate) under the...

Thank you!

I am working with a rotary drive and a linkage system to open and close dampers. I am having trouble recalling how lb-ft and lbf relate. The drive has a rotating shaft with and arm extending from it. The shaft generates 5000 lb-ft of torque and I need to understand what linear force this...

What are you solving for specifically? Are you looking for tension in the cables. If so, I believe you can probably start with something like this: Do you free body diagram and for the equations consider the ones below: Fx=Fsin(theta) Fy=Fcos(theta) I believe since you know the sign...

I have a locking device with a cable running through it (think of pieces of PVC pipe with a cable through them). I apply pressure and pull on one end of the cable tightening it and pulling the pieces together so I can lock it with a cam device. To lock it presently it requires 1200 psi...

below is a link to a table regarding interference fits. Mr. Garvin made a good point I neglected by way of oversight. We use extremely hard alloys under extreme forces. About .001" would certainly be a heavy fit for aluminum. Look at this table and the web site. It contains good...

If I understand your question, you would like to know how much larger the dimension for the turned down end of the aluminum rod needs to be than your 12.03mm hole to get the proper interference fit. If that is correct, I will tell you that is most likely going to depend on what forces the fit...